*misc

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diff --git a/ThirdParty/CsvHelper-master/src/CsvHelper.Website/input/examples/configuration/class-maps/optional-maps/index.md b/ThirdParty/CsvHelper-master/src/CsvHelper.Website/input/examples/configuration/class-maps/optional-maps/index.md
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+# Optional Maps
+
+If you have data that may or may not have a header, you can make the mapping optional.
+
+###### Data
+
+```
+Id,Name
+1,one
+```
+
+###### Example
+
+```cs
+void Main()
+{
+	using (var reader = new StreamReader("path\\to\\file.csv"))
+	using (var csv = new CsvReader(reader, CultureInfo.InvariantCulture))
+	{
+		csv.Context.RegisterClassMap<FooMap>();
+		csv.GetRecords<Foo>().ToList().Dump();
+	}
+}
+
+public class Foo
+{
+	public int Id { get; set; }
+	public string Name { get; set; }
+	public DateTimeOffset? Date { get; set; }
+}
+
+public class FooMap : ClassMap<Foo>
+{
+	public FooMap()
+	{
+		Map(m => m.Id);
+		Map(m => m.Name);
+		Map(m => m.Date).Optional();
+	}
+}
+```
+